package com.lzl.vod.service;

import com.aliyun.vod.upload.impl.UploadVideoImpl;
import com.aliyun.vod.upload.req.UploadStreamRequest;
import com.aliyun.vod.upload.resp.UploadStreamResponse;
import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.vod.model.v20170321.DeleteVideoRequest;
import com.lzl.servicebase.exceptionHandler.LZLException;
import com.lzl.vod.utils.ConstantVodUtils;
import com.lzl.vod.utils.InitVodClient;
import org.apache.commons.lang.StringUtils;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.io.InputStream;
import java.util.List;

@Service
public class VodServiceImpl implements VodService{

    /**
     * 上传视频到阿里云
     * 文档上的四种上传方式---现在使用流式上传
     * @param file
     * @return
     */
    @Override
    public String uploadVideo(MultipartFile file) {

        /**
         * 流式上传接口
         * @param accessKeyId
         * @param accessKeySecret   获取这个数据在配置文件中  和oss的做法类似
         * @param title   上传之后显示名称
         * @param fileName   上传文件的原始名称
         * @param inputStream   上传文件的输入流   需要用file 转换
         */

        String fileName=file.getOriginalFilename();
        //eg: 01.02.02.mp4 只取--- 02 lastIndexOf就是算最后一个
        String title= fileName.substring(0,fileName.lastIndexOf("."));

        InputStream inputStream = null;
        try {
            inputStream = file.getInputStream();
            UploadStreamRequest request;
            request = new UploadStreamRequest(ConstantVodUtils.ACCESS_KEY_ID, ConstantVodUtils.ACCESS_KEY_SECRET, title, fileName, inputStream);

            UploadVideoImpl uploader = new UploadVideoImpl();
            UploadStreamResponse response = uploader.uploadStream(request);

            String videoId = null;
            if (response.isSuccess()) {
                videoId = response.getVideoId();

                System.out.print("VideoId=" + response.getVideoId() + "\n");
            } else { //如果设置回调URL无效，不影响视频上传，可以返回VideoId同时会返回错误码。其他情况上传失败时，VideoId为空，此时需要根据返回错误码分析具体错误原因
                videoId = response.getVideoId();

                System.out.print("VideoId=" + response.getVideoId() + "\n");
                System.out.print("ErrorCode=" + response.getCode() + "\n");
                System.out.print("ErrorMessage=" + response.getMessage() + "\n");
            }
            return videoId;
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }

    }

    /**
     * 根据视频id 删除阿里云视频
     * @param id
     */
    @Override
    public void deleteAlyVideoById(String id) {

        try {
            //创建初始化对象
            DefaultAcsClient client = InitVodClient.initVodClient(ConstantVodUtils.ACCESS_KEY_ID, ConstantVodUtils.ACCESS_KEY_SECRET);
            //创建删除视频request对象
            DeleteVideoRequest request = new DeleteVideoRequest();
            //向request设置视频id  setVideoIds()方法可以一下子删除很多视频
            request.setVideoIds(id);
            //调用初始化对象中的方法删除
            client.getAcsResponse(request);

        }catch (Exception e){
            e.printStackTrace();
            throw new LZLException(20001,"删除Aly视频失败");
        }

    }


    //删除多个阿里云视频
    @Override
    public void removeMoreAlyVideo(List videoIdList) {

        try {
            //创建初始化对象
            DefaultAcsClient client = InitVodClient.initVodClient(ConstantVodUtils.ACCESS_KEY_ID, ConstantVodUtils.ACCESS_KEY_SECRET);
            //创建删除视频request对象
            DeleteVideoRequest request = new DeleteVideoRequest();
            //向request设置视频id  setVideoIds()方法可以一下子删除很多视频
            //支持传入多个视频ID，多个用逗号分隔。所以需要把list集合转换
            String join = StringUtils.join(videoIdList.toArray(), ",");

            request.setVideoIds(join);
            //调用初始化对象中的方法删除
            client.getAcsResponse(request);

        }catch (Exception e){
            e.printStackTrace();
            throw new LZLException(20001,"删除Aly视频失败");
        }

    }


}
